On Wed, 2010-05-05 at 10:44 +0300, Alans wrote:
Hi all,
Can we use spamassasin in ISP environment to scan outbound emails?
ram wrote:
Yes. But separate out your inbound & outbound scans.
FWIW I can say with authority that this is not necessary. It may
simplify your mail system depending on your setup.
For outbound Disable all IP based rules because they will cause FP's.
Careful configuration of the trust path options (trusted_networks,
internal_networks, msa_networks) is very important; making sure that
your glue layer feeds in a sane synthetic Received: header may help the
trust path remain coherent. We're running OK without the latter.
And what do you plan to do with the spams ? On my servers I just add the
score header and let the mail go but send a copy to a program. If more
than 10 occur in 30 minutes from the same customer , the customers
account is temporarily blocked and we manually check.
We reject at 8; with a mechanism to bump that to 10 for SMTP AUTH'ed
connections.
-kgd
